Home / 102,002.04-140,760.02-56,678.87

Finding the Fourth Proportional to 102,002.04, 140,760.02 and 56,678.87

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Solution

The fourth proportional to 102,002.04, 140,760.02 and 56,678.87 is: 78,215.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,002.04 : 140,760.02 = 56,678.87 : x
  2. Step 2: Convert to fraction form
    102,002.04/140,760.02 = 56,678.87/x
  3. Step 3: Cross multiply
    102,002.04x = 140,760.02 × 56,678.87
  4. Step 4: Simplify right side
    102,002.04x = 7,978,117,887.58
  5. Step 5: Solve for x
    x = 7,978,117,887.58/102,002.04
  6. Step 6: Final answer
    x = 78,215.28

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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.