Home / 105,319.39-145,343.55-62,902.39

Finding the Fourth Proportional to 105,319.39, 145,343.55 and 62,902.39

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Solution

The fourth proportional to 105,319.39, 145,343.55 and 62,902.39 is: 86,806.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,319.39 : 145,343.55 = 62,902.39 : x
  2. Step 2: Convert to fraction form
    105,319.39/145,343.55 = 62,902.39/x
  3. Step 3: Cross multiply
    105,319.39x = 145,343.55 × 62,902.39
  4. Step 4: Simplify right side
    105,319.39x = 9,142,456,666.08
  5. Step 5: Solve for x
    x = 9,142,456,666.08/105,319.39
  6. Step 6: Final answer
    x = 86,806.97

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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.