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Finding the Fourth Proportional to 117,901.71, 162,699.23 and 64,186.90

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Solution

The fourth proportional to 117,901.71, 162,699.23 and 64,186.90 is: 88,575.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,901.71 : 162,699.23 = 64,186.90 : x
  2. Step 2: Convert to fraction form
    117,901.71/162,699.23 = 64,186.90/x
  3. Step 3: Cross multiply
    117,901.71x = 162,699.23 × 64,186.90
  4. Step 4: Simplify right side
    117,901.71x = 10,443,158,959.81
  5. Step 5: Solve for x
    x = 10,443,158,959.81/117,901.71
  6. Step 6: Final answer
    x = 88,575.13

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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.