Home / 131,440.02-181,387.31-71,010.64

Finding the Fourth Proportional to 131,440.02, 181,387.31 and 71,010.64

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Solution

The fourth proportional to 131,440.02, 181,387.31 and 71,010.64 is: 97,994.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,440.02 : 181,387.31 = 71,010.64 : x
  2. Step 2: Convert to fraction form
    131,440.02/181,387.31 = 71,010.64/x
  3. Step 3: Cross multiply
    131,440.02x = 181,387.31 × 71,010.64
  4. Step 4: Simplify right side
    131,440.02x = 12,880,428,970.98
  5. Step 5: Solve for x
    x = 12,880,428,970.98/131,440.02
  6. Step 6: Final answer
    x = 97,994.73

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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.