Home / 180,552.03-249,161.64-99,979.55

Finding the Fourth Proportional to 180,552.03, 249,161.64 and 99,979.55

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Solution

The fourth proportional to 180,552.03, 249,161.64 and 99,979.55 is: 137,971.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,552.03 : 249,161.64 = 99,979.55 : x
  2. Step 2: Convert to fraction form
    180,552.03/249,161.64 = 99,979.55/x
  3. Step 3: Cross multiply
    180,552.03x = 249,161.64 × 99,979.55
  4. Step 4: Simplify right side
    180,552.03x = 24,911,068,644.46
  5. Step 5: Solve for x
    x = 24,911,068,644.46/180,552.03
  6. Step 6: Final answer
    x = 137,971.69

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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.