Home / 118,215.19-163,133.80-64,500.18

Finding the Fourth Proportional to 118,215.19, 163,133.80 and 64,500.18

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Solution

The fourth proportional to 118,215.19, 163,133.80 and 64,500.18 is: 89,008.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,215.19 : 163,133.80 = 64,500.18 : x
  2. Step 2: Convert to fraction form
    118,215.19/163,133.80 = 64,500.18/x
  3. Step 3: Cross multiply
    118,215.19x = 163,133.80 × 64,500.18
  4. Step 4: Simplify right side
    118,215.19x = 10,522,159,464.08
  5. Step 5: Solve for x
    x = 10,522,159,464.08/118,215.19
  6. Step 6: Final answer
    x = 89,008.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.