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Finding the Fourth Proportional to 115,484, 159,368.40 and 62,492

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Solution

The fourth proportional to 115,484, 159,368.40 and 62,492 is: 86,239.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,484 : 159,368.40 = 62,492 : x
  2. Step 2: Convert to fraction form
    115,484/159,368.40 = 62,492/x
  3. Step 3: Cross multiply
    115,484x = 159,368.40 × 62,492
  4. Step 4: Simplify right side
    115,484x = 9,959,250,052.80
  5. Step 5: Solve for x
    x = 9,959,250,052.80/115,484
  6. Step 6: Final answer
    x = 86,239.22

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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.