Home / 180,586.31-249,209.95-100,012.15

Finding the Fourth Proportional to 180,586.31, 249,209.95 and 100,012.15

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Solution

The fourth proportional to 180,586.31, 249,209.95 and 100,012.15 is: 138,017.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,586.31 : 249,209.95 = 100,012.15 : x
  2. Step 2: Convert to fraction form
    180,586.31/249,209.95 = 100,012.15/x
  3. Step 3: Cross multiply
    180,586.31x = 249,209.95 × 100,012.15
  4. Step 4: Simplify right side
    180,586.31x = 24,924,022,027.84
  5. Step 5: Solve for x
    x = 24,924,022,027.84/180,586.31
  6. Step 6: Final answer
    x = 138,017.23

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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.