Home / 249,747.70-374,621.55-81,283.90

Finding the Fourth Proportional to 249,747.70, 374,621.55 and 81,283.90

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Solution

The fourth proportional to 249,747.70, 374,621.55 and 81,283.90 is: 121,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,747.70 : 374,621.55 = 81,283.90 : x
  2. Step 2: Convert to fraction form
    249,747.70/374,621.55 = 81,283.90/x
  3. Step 3: Cross multiply
    249,747.70x = 374,621.55 × 81,283.90
  4. Step 4: Simplify right side
    249,747.70x = 30,450,700,608.05
  5. Step 5: Solve for x
    x = 30,450,700,608.05/249,747.70
  6. Step 6: Final answer
    x = 121,925.85

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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.