Home / 105,420.76-145,487.10-60,723.16

Finding the Fourth Proportional to 105,420.76, 145,487.10 and 60,723.16

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Solution

The fourth proportional to 105,420.76, 145,487.10 and 60,723.16 is: 83,801.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,420.76 : 145,487.10 = 60,723.16 : x
  2. Step 2: Convert to fraction form
    105,420.76/145,487.10 = 60,723.16/x
  3. Step 3: Cross multiply
    105,420.76x = 145,487.10 × 60,723.16
  4. Step 4: Simplify right side
    105,420.76x = 8,834,436,451.24
  5. Step 5: Solve for x
    x = 8,834,436,451.24/105,420.76
  6. Step 6: Final answer
    x = 83,801.68

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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.