Home / 105,298.40-145,265.12-62,832.38

Finding the Fourth Proportional to 105,298.40, 145,265.12 and 62,832.38

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Solution

The fourth proportional to 105,298.40, 145,265.12 and 62,832.38 is: 86,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,298.40 : 145,265.12 = 62,832.38 : x
  2. Step 2: Convert to fraction form
    105,298.40/145,265.12 = 62,832.38/x
  3. Step 3: Cross multiply
    105,298.40x = 145,265.12 × 62,832.38
  4. Step 4: Simplify right side
    105,298.40x = 9,127,353,220.59
  5. Step 5: Solve for x
    x = 9,127,353,220.59/105,298.40
  6. Step 6: Final answer
    x = 86,680.83

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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.