Home / 131,430.59-181,374.07-71,001.23

Finding the Fourth Proportional to 131,430.59, 181,374.07 and 71,001.23

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Solution

The fourth proportional to 131,430.59, 181,374.07 and 71,001.23 is: 97,981.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,430.59 : 181,374.07 = 71,001.23 : x
  2. Step 2: Convert to fraction form
    131,430.59/181,374.07 = 71,001.23/x
  3. Step 3: Cross multiply
    131,430.59x = 181,374.07 × 71,001.23
  4. Step 4: Simplify right side
    131,430.59x = 12,877,782,060.11
  5. Step 5: Solve for x
    x = 12,877,782,060.11/131,430.59
  6. Step 6: Final answer
    x = 97,981.62

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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.