Home / 157,042.60-216,602.78-99,632.50

Finding the Fourth Proportional to 157,042.60, 216,602.78 and 99,632.50

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Solution

The fourth proportional to 157,042.60, 216,602.78 and 99,632.50 is: 137,419.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,042.60 : 216,602.78 = 99,632.50 : x
  2. Step 2: Convert to fraction form
    157,042.60/216,602.78 = 99,632.50/x
  3. Step 3: Cross multiply
    157,042.60x = 216,602.78 × 99,632.50
  4. Step 4: Simplify right side
    157,042.60x = 21,580,675,438.68
  5. Step 5: Solve for x
    x = 21,580,675,438.68/157,042.60
  6. Step 6: Final answer
    x = 137,419.25

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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.