Home / 153,130.86-229,204.89-81,875.43

Finding the Fourth Proportional to 153,130.86, 229,204.89 and 81,875.43

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Solution

The fourth proportional to 153,130.86, 229,204.89 and 81,875.43 is: 122,550.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,130.86 : 229,204.89 = 81,875.43 : x
  2. Step 2: Convert to fraction form
    153,130.86/229,204.89 = 81,875.43/x
  3. Step 3: Cross multiply
    153,130.86x = 229,204.89 × 81,875.43
  4. Step 4: Simplify right side
    153,130.86x = 18,766,248,926.85
  5. Step 5: Solve for x
    x = 18,766,248,926.85/153,130.86
  6. Step 6: Final answer
    x = 122,550.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.