Home / 119,359.35-164,712.65-65,644.38

Finding the Fourth Proportional to 119,359.35, 164,712.65 and 65,644.38

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Solution

The fourth proportional to 119,359.35, 164,712.65 and 65,644.38 is: 90,587.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,359.35 : 164,712.65 = 65,644.38 : x
  2. Step 2: Convert to fraction form
    119,359.35/164,712.65 = 65,644.38/x
  3. Step 3: Cross multiply
    119,359.35x = 164,712.65 × 65,644.38
  4. Step 4: Simplify right side
    119,359.35x = 10,812,459,459.19
  5. Step 5: Solve for x
    x = 10,812,459,459.19/119,359.35
  6. Step 6: Final answer
    x = 90,587.45

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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.