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Finding the Fourth Proportional to 157,820.71, 236,731.95 and 52,639.39

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Solution

The fourth proportional to 157,820.71, 236,731.95 and 52,639.39 is: 78,959.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,820.71 : 236,731.95 = 52,639.39 : x
  2. Step 2: Convert to fraction form
    157,820.71/236,731.95 = 52,639.39/x
  3. Step 3: Cross multiply
    157,820.71x = 236,731.95 × 52,639.39
  4. Step 4: Simplify right side
    157,820.71x = 12,461,425,441.51
  5. Step 5: Solve for x
    x = 12,461,425,441.51/157,820.71
  6. Step 6: Final answer
    x = 78,959.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.