Home / 119,150.64-164,428.12-65,439.18

Finding the Fourth Proportional to 119,150.64, 164,428.12 and 65,439.18

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Solution

The fourth proportional to 119,150.64, 164,428.12 and 65,439.18 is: 90,306.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,150.64 : 164,428.12 = 65,439.18 : x
  2. Step 2: Convert to fraction form
    119,150.64/164,428.12 = 65,439.18/x
  3. Step 3: Cross multiply
    119,150.64x = 164,428.12 × 65,439.18
  4. Step 4: Simplify right side
    119,150.64x = 10,760,041,341.74
  5. Step 5: Solve for x
    x = 10,760,041,341.74/119,150.64
  6. Step 6: Final answer
    x = 90,306.20

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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.