Home / 157,315.64-217,095.73-85,695.57

Finding the Fourth Proportional to 157,315.64, 217,095.73 and 85,695.57

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Solution

The fourth proportional to 157,315.64, 217,095.73 and 85,695.57 is: 118,259.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,315.64 : 217,095.73 = 85,695.57 : x
  2. Step 2: Convert to fraction form
    157,315.64/217,095.73 = 85,695.57/x
  3. Step 3: Cross multiply
    157,315.64x = 217,095.73 × 85,695.57
  4. Step 4: Simplify right side
    157,315.64x = 18,604,142,112.68
  5. Step 5: Solve for x
    x = 18,604,142,112.68/157,315.64
  6. Step 6: Final answer
    x = 118,259.97

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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.