Home / 108,875.46-163,160.02-86,589.93

Finding the Fourth Proportional to 108,875.46, 163,160.02 and 86,589.93

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Solution

The fourth proportional to 108,875.46, 163,160.02 and 86,589.93 is: 129,763.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,875.46 : 163,160.02 = 86,589.93 : x
  2. Step 2: Convert to fraction form
    108,875.46/163,160.02 = 86,589.93/x
  3. Step 3: Cross multiply
    108,875.46x = 163,160.02 × 86,589.93
  4. Step 4: Simplify right side
    108,875.46x = 14,128,014,710.60
  5. Step 5: Solve for x
    x = 14,128,014,710.60/108,875.46
  6. Step 6: Final answer
    x = 129,763.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.