Home / 105,421.76-145,488.48-60,724.16

Finding the Fourth Proportional to 105,421.76, 145,488.48 and 60,724.16

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Solution

The fourth proportional to 105,421.76, 145,488.48 and 60,724.16 is: 83,803.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,421.76 : 145,488.48 = 60,724.16 : x
  2. Step 2: Convert to fraction form
    105,421.76/145,488.48 = 60,724.16/x
  3. Step 3: Cross multiply
    105,421.76x = 145,488.48 × 60,724.16
  4. Step 4: Simplify right side
    105,421.76x = 8,834,665,737.68
  5. Step 5: Solve for x
    x = 8,834,665,737.68/105,421.76
  6. Step 6: Final answer
    x = 83,803.06

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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.