Home / 157,341.49-217,131.50-89,358.46

Finding the Fourth Proportional to 157,341.49, 217,131.50 and 89,358.46

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Solution

The fourth proportional to 157,341.49, 217,131.50 and 89,358.46 is: 123,314.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,341.49 : 217,131.50 = 89,358.46 : x
  2. Step 2: Convert to fraction form
    157,341.49/217,131.50 = 89,358.46/x
  3. Step 3: Cross multiply
    157,341.49x = 217,131.50 × 89,358.46
  4. Step 4: Simplify right side
    157,341.49x = 19,402,536,138.06
  5. Step 5: Solve for x
    x = 19,402,536,138.06/157,341.49
  6. Step 6: Final answer
    x = 123,314.81

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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.