Home / 125,636.09-173,307.64-77,204.40

Finding the Fourth Proportional to 125,636.09, 173,307.64 and 77,204.40

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Solution

The fourth proportional to 125,636.09, 173,307.64 and 77,204.40 is: 106,498.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,636.09 : 173,307.64 = 77,204.40 : x
  2. Step 2: Convert to fraction form
    125,636.09/173,307.64 = 77,204.40/x
  3. Step 3: Cross multiply
    125,636.09x = 173,307.64 × 77,204.40
  4. Step 4: Simplify right side
    125,636.09x = 13,380,112,773.46
  5. Step 5: Solve for x
    x = 13,380,112,773.46/125,636.09
  6. Step 6: Final answer
    x = 106,498.96

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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.