Home / 99,089.23-148,643.56-28,012.40

Finding the Fourth Proportional to 99,089.23, 148,643.56 and 28,012.40

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Solution

The fourth proportional to 99,089.23, 148,643.56 and 28,012.40 is: 42,021.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,089.23 : 148,643.56 = 28,012.40 : x
  2. Step 2: Convert to fraction form
    99,089.23/148,643.56 = 28,012.40/x
  3. Step 3: Cross multiply
    99,089.23x = 148,643.56 × 28,012.40
  4. Step 4: Simplify right side
    99,089.23x = 4,163,862,720.08
  5. Step 5: Solve for x
    x = 4,163,862,720.08/99,089.23
  6. Step 6: Final answer
    x = 42,021.35

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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.