Home / 128,237.04-176,975.28-71,652.60

Finding the Fourth Proportional to 128,237.04, 176,975.28 and 71,652.60

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Solution

The fourth proportional to 128,237.04, 176,975.28 and 71,652.60 is: 98,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,237.04 : 176,975.28 = 71,652.60 : x
  2. Step 2: Convert to fraction form
    128,237.04/176,975.28 = 71,652.60/x
  3. Step 3: Cross multiply
    128,237.04x = 176,975.28 × 71,652.60
  4. Step 4: Simplify right side
    128,237.04x = 12,680,738,947.73
  5. Step 5: Solve for x
    x = 12,680,738,947.73/128,237.04
  6. Step 6: Final answer
    x = 98,885.15

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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.