Home / 99,258.76-148,869.78-45,210.70

Finding the Fourth Proportional to 99,258.76, 148,869.78 and 45,210.70

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Solution

The fourth proportional to 99,258.76, 148,869.78 and 45,210.70 is: 67,807.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,258.76 : 148,869.78 = 45,210.70 : x
  2. Step 2: Convert to fraction form
    99,258.76/148,869.78 = 45,210.70/x
  3. Step 3: Cross multiply
    99,258.76x = 148,869.78 × 45,210.70
  4. Step 4: Simplify right side
    99,258.76x = 6,730,506,962.65
  5. Step 5: Solve for x
    x = 6,730,506,962.65/99,258.76
  6. Step 6: Final answer
    x = 67,807.69

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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.