Home / 157,502.07-235,249.13-142,486.11

Finding the Fourth Proportional to 157,502.07, 235,249.13 and 142,486.11

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Solution

The fourth proportional to 157,502.07, 235,249.13 and 142,486.11 is: 212,820.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,502.07 : 235,249.13 = 142,486.11 : x
  2. Step 2: Convert to fraction form
    157,502.07/235,249.13 = 142,486.11/x
  3. Step 3: Cross multiply
    157,502.07x = 235,249.13 × 142,486.11
  4. Step 4: Simplify right side
    157,502.07x = 33,519,733,770.80
  5. Step 5: Solve for x
    x = 33,519,733,770.80/157,502.07
  6. Step 6: Final answer
    x = 212,820.91

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.