Home / 112,430.70-168,710.85-42,360.30

Finding the Fourth Proportional to 112,430.70, 168,710.85 and 42,360.30

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Solution

The fourth proportional to 112,430.70, 168,710.85 and 42,360.30 is: 63,564.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,430.70 : 168,710.85 = 42,360.30 : x
  2. Step 2: Convert to fraction form
    112,430.70/168,710.85 = 42,360.30/x
  3. Step 3: Cross multiply
    112,430.70x = 168,710.85 × 42,360.30
  4. Step 4: Simplify right side
    112,430.70x = 7,146,642,219.26
  5. Step 5: Solve for x
    x = 7,146,642,219.26/112,430.70
  6. Step 6: Final answer
    x = 63,564.86

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1.5x scale

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.