Home / 156,987.02-216,637.35-89,010.20

Finding the Fourth Proportional to 156,987.02, 216,637.35 and 89,010.20

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Solution

The fourth proportional to 156,987.02, 216,637.35 and 89,010.20 is: 122,831.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,987.02 : 216,637.35 = 89,010.20 : x
  2. Step 2: Convert to fraction form
    156,987.02/216,637.35 = 89,010.20/x
  3. Step 3: Cross multiply
    156,987.02x = 216,637.35 × 89,010.20
  4. Step 4: Simplify right side
    156,987.02x = 19,282,933,850.97
  5. Step 5: Solve for x
    x = 19,282,933,850.97/156,987.02
  6. Step 6: Final answer
    x = 122,831.39

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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.