Home / 99,603.13-137,450.58-54,281.47

Finding the Fourth Proportional to 99,603.13, 137,450.58 and 54,281.47

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Solution

The fourth proportional to 99,603.13, 137,450.58 and 54,281.47 is: 74,907.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,603.13 : 137,450.58 = 54,281.47 : x
  2. Step 2: Convert to fraction form
    99,603.13/137,450.58 = 54,281.47/x
  3. Step 3: Cross multiply
    99,603.13x = 137,450.58 × 54,281.47
  4. Step 4: Simplify right side
    99,603.13x = 7,461,019,534.75
  5. Step 5: Solve for x
    x = 7,461,019,534.75/99,603.13
  6. Step 6: Final answer
    x = 74,907.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.