Home / 121,966.02-168,292.89-71,674.74

Finding the Fourth Proportional to 121,966.02, 168,292.89 and 71,674.74

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Solution

The fourth proportional to 121,966.02, 168,292.89 and 71,674.74 is: 98,899.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,966.02 : 168,292.89 = 71,674.74 : x
  2. Step 2: Convert to fraction form
    121,966.02/168,292.89 = 71,674.74/x
  3. Step 3: Cross multiply
    121,966.02x = 168,292.89 × 71,674.74
  4. Step 4: Simplify right side
    121,966.02x = 12,062,349,134.60
  5. Step 5: Solve for x
    x = 12,062,349,134.60/121,966.02
  6. Step 6: Final answer
    x = 98,899.26

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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.