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Finding the Fourth Proportional to 98,663.60, 147,995.40 and 97,788.80

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Solution

The fourth proportional to 98,663.60, 147,995.40 and 97,788.80 is: 146,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,663.60 : 147,995.40 = 97,788.80 : x
  2. Step 2: Convert to fraction form
    98,663.60/147,995.40 = 97,788.80/x
  3. Step 3: Cross multiply
    98,663.60x = 147,995.40 × 97,788.80
  4. Step 4: Simplify right side
    98,663.60x = 14,472,292,571.52
  5. Step 5: Solve for x
    x = 14,472,292,571.52/98,663.60
  6. Step 6: Final answer
    x = 146,683.20

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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.