Home / 180,902.04-249,614.91-100,316.76

Finding the Fourth Proportional to 180,902.04, 249,614.91 and 100,316.76

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Solution

The fourth proportional to 180,902.04, 249,614.91 and 100,316.76 is: 138,420.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,902.04 : 249,614.91 = 100,316.76 : x
  2. Step 2: Convert to fraction form
    180,902.04/249,614.91 = 100,316.76/x
  3. Step 3: Cross multiply
    180,902.04x = 249,614.91 × 100,316.76
  4. Step 4: Simplify right side
    180,902.04x = 25,040,559,018.89
  5. Step 5: Solve for x
    x = 25,040,559,018.89/180,902.04
  6. Step 6: Final answer
    x = 138,420.55

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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.