Home / 117,159.90-161,681.19-63,445.02

Finding the Fourth Proportional to 117,159.90, 161,681.19 and 63,445.02

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Solution

The fourth proportional to 117,159.90, 161,681.19 and 63,445.02 is: 87,554.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,159.90 : 161,681.19 = 63,445.02 : x
  2. Step 2: Convert to fraction form
    117,159.90/161,681.19 = 63,445.02/x
  3. Step 3: Cross multiply
    117,159.90x = 161,681.19 × 63,445.02
  4. Step 4: Simplify right side
    117,159.90x = 10,257,866,333.17
  5. Step 5: Solve for x
    x = 10,257,866,333.17/117,159.90
  6. Step 6: Final answer
    x = 87,554.41

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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.