Home / 125,638.32-173,323.08-77,196.28

Finding the Fourth Proportional to 125,638.32, 173,323.08 and 77,196.28

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Solution

The fourth proportional to 125,638.32, 173,323.08 and 77,196.28 is: 106,495.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,638.32 : 173,323.08 = 77,196.28 : x
  2. Step 2: Convert to fraction form
    125,638.32/173,323.08 = 77,196.28/x
  3. Step 3: Cross multiply
    125,638.32x = 173,323.08 × 77,196.28
  4. Step 4: Simplify right side
    125,638.32x = 13,379,897,014.14
  5. Step 5: Solve for x
    x = 13,379,897,014.14/125,638.32
  6. Step 6: Final answer
    x = 106,495.35

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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.