Home / 125,776.96-173,547.03-72,078.82

Finding the Fourth Proportional to 125,776.96, 173,547.03 and 72,078.82

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Solution

The fourth proportional to 125,776.96, 173,547.03 and 72,078.82 is: 99,454.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,776.96 : 173,547.03 = 72,078.82 : x
  2. Step 2: Convert to fraction form
    125,776.96/173,547.03 = 72,078.82/x
  3. Step 3: Cross multiply
    125,776.96x = 173,547.03 × 72,078.82
  4. Step 4: Simplify right side
    125,776.96x = 12,509,065,136.90
  5. Step 5: Solve for x
    x = 12,509,065,136.90/125,776.96
  6. Step 6: Final answer
    x = 99,454.34

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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.