Home / 180,732.54-249,407.31-100,158.40

Finding the Fourth Proportional to 180,732.54, 249,407.31 and 100,158.40

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Solution

The fourth proportional to 180,732.54, 249,407.31 and 100,158.40 is: 138,216.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,732.54 : 249,407.31 = 100,158.40 : x
  2. Step 2: Convert to fraction form
    180,732.54/249,407.31 = 100,158.40/x
  3. Step 3: Cross multiply
    180,732.54x = 249,407.31 × 100,158.40
  4. Step 4: Simplify right side
    180,732.54x = 24,980,237,117.90
  5. Step 5: Solve for x
    x = 24,980,237,117.90/180,732.54
  6. Step 6: Final answer
    x = 138,216.60

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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.