Home / 98,569.20-147,683.70-45,870.60

Finding the Fourth Proportional to 98,569.20, 147,683.70 and 45,870.60

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Solution

The fourth proportional to 98,569.20, 147,683.70 and 45,870.60 is: 68,726.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,569.20 : 147,683.70 = 45,870.60 : x
  2. Step 2: Convert to fraction form
    98,569.20/147,683.70 = 45,870.60/x
  3. Step 3: Cross multiply
    98,569.20x = 147,683.70 × 45,870.60
  4. Step 4: Simplify right side
    98,569.20x = 6,774,339,929.22
  5. Step 5: Solve for x
    x = 6,774,339,929.22/98,569.20
  6. Step 6: Final answer
    x = 68,726.74

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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.