Home / 157,328.24-217,111.02-85,706.74

Finding the Fourth Proportional to 157,328.24, 217,111.02 and 85,706.74

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Solution

The fourth proportional to 157,328.24, 217,111.02 and 85,706.74 is: 118,274.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,328.24 : 217,111.02 = 85,706.74 : x
  2. Step 2: Convert to fraction form
    157,328.24/217,111.02 = 85,706.74/x
  3. Step 3: Cross multiply
    157,328.24x = 217,111.02 × 85,706.74
  4. Step 4: Simplify right side
    157,328.24x = 18,607,876,656.72
  5. Step 5: Solve for x
    x = 18,607,876,656.72/157,328.24
  6. Step 6: Final answer
    x = 118,274.23

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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.