Home / 105,126.90-145,079.43-59,812.86

Finding the Fourth Proportional to 105,126.90, 145,079.43 and 59,812.86

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Solution

The fourth proportional to 105,126.90, 145,079.43 and 59,812.86 is: 82,544.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,126.90 : 145,079.43 = 59,812.86 : x
  2. Step 2: Convert to fraction form
    105,126.90/145,079.43 = 59,812.86/x
  3. Step 3: Cross multiply
    105,126.90x = 145,079.43 × 59,812.86
  4. Step 4: Simplify right side
    105,126.90x = 8,677,615,635.47
  5. Step 5: Solve for x
    x = 8,677,615,635.47/105,126.90
  6. Step 6: Final answer
    x = 82,544.20

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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.