Home / 157,218.28-216,962.34-85,598.44

Finding the Fourth Proportional to 157,218.28, 216,962.34 and 85,598.44

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Solution

The fourth proportional to 157,218.28, 216,962.34 and 85,598.44 is: 118,126.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,218.28 : 216,962.34 = 85,598.44 : x
  2. Step 2: Convert to fraction form
    157,218.28/216,962.34 = 85,598.44/x
  3. Step 3: Cross multiply
    157,218.28x = 216,962.34 × 85,598.44
  4. Step 4: Simplify right side
    157,218.28x = 18,571,637,842.75
  5. Step 5: Solve for x
    x = 18,571,637,842.75/157,218.28
  6. Step 6: Final answer
    x = 118,126.45

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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.