Home / 180,798.24-249,484.76-100,218.90

Finding the Fourth Proportional to 180,798.24, 249,484.76 and 100,218.90

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Solution

The fourth proportional to 180,798.24, 249,484.76 and 100,218.90 is: 138,292.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,798.24 : 249,484.76 = 100,218.90 : x
  2. Step 2: Convert to fraction form
    180,798.24/249,484.76 = 100,218.90/x
  3. Step 3: Cross multiply
    180,798.24x = 249,484.76 × 100,218.90
  4. Step 4: Simplify right side
    180,798.24x = 25,003,087,712.87
  5. Step 5: Solve for x
    x = 25,003,087,712.87/180,798.24
  6. Step 6: Final answer
    x = 138,292.76

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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.