Home / 157,363.18-217,155.09-85,743.74

Finding the Fourth Proportional to 157,363.18, 217,155.09 and 85,743.74

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Solution

The fourth proportional to 157,363.18, 217,155.09 and 85,743.74 is: 118,323.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,363.18 : 217,155.09 = 85,743.74 : x
  2. Step 2: Convert to fraction form
    157,363.18/217,155.09 = 85,743.74/x
  3. Step 3: Cross multiply
    157,363.18x = 217,155.09 × 85,743.74
  4. Step 4: Simplify right side
    157,363.18x = 18,619,688,490.86
  5. Step 5: Solve for x
    x = 18,619,688,490.86/157,363.18
  6. Step 6: Final answer
    x = 118,323.03

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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.