Home / 180,485.38-249,066.84-99,911.20

Finding the Fourth Proportional to 180,485.38, 249,066.84 and 99,911.20

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Solution

The fourth proportional to 180,485.38, 249,066.84 and 99,911.20 is: 137,875.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,485.38 : 249,066.84 = 99,911.20 : x
  2. Step 2: Convert to fraction form
    180,485.38/249,066.84 = 99,911.20/x
  3. Step 3: Cross multiply
    180,485.38x = 249,066.84 × 99,911.20
  4. Step 4: Simplify right side
    180,485.38x = 24,884,566,864.61
  5. Step 5: Solve for x
    x = 24,884,566,864.61/180,485.38
  6. Step 6: Final answer
    x = 137,875.80

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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.