Home / 157,740.16-236,644.26-45,419.62

Finding the Fourth Proportional to 157,740.16, 236,644.26 and 45,419.62

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Solution

The fourth proportional to 157,740.16, 236,644.26 and 45,419.62 is: 68,139.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,740.16 : 236,644.26 = 45,419.62 : x
  2. Step 2: Convert to fraction form
    157,740.16/236,644.26 = 45,419.62/x
  3. Step 3: Cross multiply
    157,740.16x = 236,644.26 × 45,419.62
  4. Step 4: Simplify right side
    157,740.16x = 10,748,292,364.38
  5. Step 5: Solve for x
    x = 10,748,292,364.38/157,740.16
  6. Step 6: Final answer
    x = 68,139.23

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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.