Home / 99,684.90-149,570.55-47,067.30

Finding the Fourth Proportional to 99,684.90, 149,570.55 and 47,067.30

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Solution

The fourth proportional to 99,684.90, 149,570.55 and 47,067.30 is: 70,621.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,684.90 : 149,570.55 = 47,067.30 : x
  2. Step 2: Convert to fraction form
    99,684.90/149,570.55 = 47,067.30/x
  3. Step 3: Cross multiply
    99,684.90x = 149,570.55 × 47,067.30
  4. Step 4: Simplify right side
    99,684.90x = 7,039,881,948.02
  5. Step 5: Solve for x
    x = 7,039,881,948.02/99,684.90
  6. Step 6: Final answer
    x = 70,621.35

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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.