Home / 112,357,130.20-168,535,695.30-81,506,980.15

Finding the Fourth Proportional to 112,357,130.20, 168,535,695.30 and 81,506,980.15

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Solution

The fourth proportional to 112,357,130.20, 168,535,695.30 and 81,506,980.15 is: 122,260,470.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,357,130.20 : 168,535,695.30 = 81,506,980.15 : x
  2. Step 2: Convert to fraction form
    112,357,130.20/168,535,695.30 = 81,506,980.15/x
  3. Step 3: Cross multiply
    112,357,130.20x = 168,535,695.30 × 81,506,980.15
  4. Step 4: Simplify right side
    112,357,130.20x = 13,736,835,571,383,550
  5. Step 5: Solve for x
    x = 13,736,835,571,383,550/112,357,130.20
  6. Step 6: Final answer
    x = 122,260,470.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.