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Finding the Fourth Proportional to 181,068.37, 249,920.28 and 123,730.90

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Solution

The fourth proportional to 181,068.37, 249,920.28 and 123,730.90 is: 170,780.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,068.37 : 249,920.28 = 123,730.90 : x
  2. Step 2: Convert to fraction form
    181,068.37/249,920.28 = 123,730.90/x
  3. Step 3: Cross multiply
    181,068.37x = 249,920.28 × 123,730.90
  4. Step 4: Simplify right side
    181,068.37x = 30,922,860,547.85
  5. Step 5: Solve for x
    x = 30,922,860,547.85/181,068.37
  6. Step 6: Final answer
    x = 170,780.03

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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.