Home / 117,326.08-161,867.48-77,061.68

Finding the Fourth Proportional to 117,326.08, 161,867.48 and 77,061.68

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Solution

The fourth proportional to 117,326.08, 161,867.48 and 77,061.68 is: 106,317.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,326.08 : 161,867.48 = 77,061.68 : x
  2. Step 2: Convert to fraction form
    117,326.08/161,867.48 = 77,061.68/x
  3. Step 3: Cross multiply
    117,326.08x = 161,867.48 × 77,061.68
  4. Step 4: Simplify right side
    117,326.08x = 12,473,779,946.17
  5. Step 5: Solve for x
    x = 12,473,779,946.17/117,326.08
  6. Step 6: Final answer
    x = 106,317.20

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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.