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Finding the Fourth Proportional to 99,077.40, 148,616.10 and 65,616.30

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Solution

The fourth proportional to 99,077.40, 148,616.10 and 65,616.30 is: 98,424.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,077.40 : 148,616.10 = 65,616.30 : x
  2. Step 2: Convert to fraction form
    99,077.40/148,616.10 = 65,616.30/x
  3. Step 3: Cross multiply
    99,077.40x = 148,616.10 × 65,616.30
  4. Step 4: Simplify right side
    99,077.40x = 9,751,638,602.43
  5. Step 5: Solve for x
    x = 9,751,638,602.43/99,077.40
  6. Step 6: Final answer
    x = 98,424.45

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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.