Home / 105,280.20-157,946.28-74,176.20

Finding the Fourth Proportional to 105,280.20, 157,946.28 and 74,176.20

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Solution

The fourth proportional to 105,280.20, 157,946.28 and 74,176.20 is: 111,282.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,280.20 : 157,946.28 = 74,176.20 : x
  2. Step 2: Convert to fraction form
    105,280.20/157,946.28 = 74,176.20/x
  3. Step 3: Cross multiply
    105,280.20x = 157,946.28 × 74,176.20
  4. Step 4: Simplify right side
    105,280.20x = 11,715,854,854.54
  5. Step 5: Solve for x
    x = 11,715,854,854.54/105,280.20
  6. Step 6: Final answer
    x = 111,282.60

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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.