Home / 157,450.24-217,275.12-85,828.72

Finding the Fourth Proportional to 157,450.24, 217,275.12 and 85,828.72

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Solution

The fourth proportional to 157,450.24, 217,275.12 and 85,828.72 is: 118,440.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,450.24 : 217,275.12 = 85,828.72 : x
  2. Step 2: Convert to fraction form
    157,450.24/217,275.12 = 85,828.72/x
  3. Step 3: Cross multiply
    157,450.24x = 217,275.12 × 85,828.72
  4. Step 4: Simplify right side
    157,450.24x = 18,648,445,437.45
  5. Step 5: Solve for x
    x = 18,648,445,437.45/157,450.24
  6. Step 6: Final answer
    x = 118,440.25

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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.