Home / 180,445.16-249,011.30-99,870.97

Finding the Fourth Proportional to 180,445.16, 249,011.30 and 99,870.97

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Solution

The fourth proportional to 180,445.16, 249,011.30 and 99,870.97 is: 137,820.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,445.16 : 249,011.30 = 99,870.97 : x
  2. Step 2: Convert to fraction form
    180,445.16/249,011.30 = 99,870.97/x
  3. Step 3: Cross multiply
    180,445.16x = 249,011.30 × 99,870.97
  4. Step 4: Simplify right side
    180,445.16x = 24,868,998,826.90
  5. Step 5: Solve for x
    x = 24,868,998,826.90/180,445.16
  6. Step 6: Final answer
    x = 137,820.26

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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.