Home / 99,470.02-137,271.18-61,215.34

Finding the Fourth Proportional to 99,470.02, 137,271.18 and 61,215.34

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Solution

The fourth proportional to 99,470.02, 137,271.18 and 61,215.34 is: 84,478.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,470.02 : 137,271.18 = 61,215.34 : x
  2. Step 2: Convert to fraction form
    99,470.02/137,271.18 = 61,215.34/x
  3. Step 3: Cross multiply
    99,470.02x = 137,271.18 × 61,215.34
  4. Step 4: Simplify right side
    99,470.02x = 8,403,101,955.90
  5. Step 5: Solve for x
    x = 8,403,101,955.90/99,470.02
  6. Step 6: Final answer
    x = 84,478.74

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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.