Home / 157,470.36-217,312.11-85,853.40

Finding the Fourth Proportional to 157,470.36, 217,312.11 and 85,853.40

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Solution

The fourth proportional to 157,470.36, 217,312.11 and 85,853.40 is: 118,479.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,470.36 : 217,312.11 = 85,853.40 : x
  2. Step 2: Convert to fraction form
    157,470.36/217,312.11 = 85,853.40/x
  3. Step 3: Cross multiply
    157,470.36x = 217,312.11 × 85,853.40
  4. Step 4: Simplify right side
    157,470.36x = 18,656,983,504.67
  5. Step 5: Solve for x
    x = 18,656,983,504.67/157,470.36
  6. Step 6: Final answer
    x = 118,479.33

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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.