Home / 105,350.72-145,397.64-60,045.20

Finding the Fourth Proportional to 105,350.72, 145,397.64 and 60,045.20

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Solution

The fourth proportional to 105,350.72, 145,397.64 and 60,045.20 is: 82,870.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,350.72 : 145,397.64 = 60,045.20 : x
  2. Step 2: Convert to fraction form
    105,350.72/145,397.64 = 60,045.20/x
  3. Step 3: Cross multiply
    105,350.72x = 145,397.64 × 60,045.20
  4. Step 4: Simplify right side
    105,350.72x = 8,730,430,373.33
  5. Step 5: Solve for x
    x = 8,730,430,373.33/105,350.72
  6. Step 6: Final answer
    x = 82,870.15

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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.