Home / 99,681.31-149,352.70-60,155.37

Finding the Fourth Proportional to 99,681.31, 149,352.70 and 60,155.37

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Solution

The fourth proportional to 99,681.31, 149,352.70 and 60,155.37 is: 90,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,681.31 : 149,352.70 = 60,155.37 : x
  2. Step 2: Convert to fraction form
    99,681.31/149,352.70 = 60,155.37/x
  3. Step 3: Cross multiply
    99,681.31x = 149,352.70 × 60,155.37
  4. Step 4: Simplify right side
    99,681.31x = 8,984,365,881.46
  5. Step 5: Solve for x
    x = 8,984,365,881.46/99,681.31
  6. Step 6: Final answer
    x = 90,130.90

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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.