Home / 157,232.11-216,984.95-85,615.15

Finding the Fourth Proportional to 157,232.11, 216,984.95 and 85,615.15

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Solution

The fourth proportional to 157,232.11, 216,984.95 and 85,615.15 is: 118,151.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,232.11 : 216,984.95 = 85,615.15 : x
  2. Step 2: Convert to fraction form
    157,232.11/216,984.95 = 85,615.15/x
  3. Step 3: Cross multiply
    157,232.11x = 216,984.95 × 85,615.15
  4. Step 4: Simplify right side
    157,232.11x = 18,577,199,041.99
  5. Step 5: Solve for x
    x = 18,577,199,041.99/157,232.11
  6. Step 6: Final answer
    x = 118,151.43

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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.