Home / 157,028.85-216,689.14-85,407.33

Finding the Fourth Proportional to 157,028.85, 216,689.14 and 85,407.33

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Solution

The fourth proportional to 157,028.85, 216,689.14 and 85,407.33 is: 117,856.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,028.85 : 216,689.14 = 85,407.33 : x
  2. Step 2: Convert to fraction form
    157,028.85/216,689.14 = 85,407.33/x
  3. Step 3: Cross multiply
    157,028.85x = 216,689.14 × 85,407.33
  4. Step 4: Simplify right side
    157,028.85x = 18,506,840,887.40
  5. Step 5: Solve for x
    x = 18,506,840,887.40/157,028.85
  6. Step 6: Final answer
    x = 117,856.31

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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.