Home / 99,636.40-149,158.45-99,505.18

Finding the Fourth Proportional to 99,636.40, 149,158.45 and 99,505.18

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Solution

The fourth proportional to 99,636.40, 149,158.45 and 99,505.18 is: 148,962.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,636.40 : 149,158.45 = 99,505.18 : x
  2. Step 2: Convert to fraction form
    99,636.40/149,158.45 = 99,505.18/x
  3. Step 3: Cross multiply
    99,636.40x = 149,158.45 × 99,505.18
  4. Step 4: Simplify right side
    99,636.40x = 14,842,038,415.77
  5. Step 5: Solve for x
    x = 14,842,038,415.77/99,636.40
  6. Step 6: Final answer
    x = 148,962.01

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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.