Home / 180,451.08-249,016.14-99,878.76

Finding the Fourth Proportional to 180,451.08, 249,016.14 and 99,878.76

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Solution

The fourth proportional to 180,451.08, 249,016.14 and 99,878.76 is: 137,829.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,451.08 : 249,016.14 = 99,878.76 : x
  2. Step 2: Convert to fraction form
    180,451.08/249,016.14 = 99,878.76/x
  3. Step 3: Cross multiply
    180,451.08x = 249,016.14 × 99,878.76
  4. Step 4: Simplify right side
    180,451.08x = 24,871,423,283.19
  5. Step 5: Solve for x
    x = 24,871,423,283.19/180,451.08
  6. Step 6: Final answer
    x = 137,829.17

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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.