Home / 236,427.90-354,641.85-78,672.30

Finding the Fourth Proportional to 236,427.90, 354,641.85 and 78,672.30

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Solution

The fourth proportional to 236,427.90, 354,641.85 and 78,672.30 is: 118,008.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,427.90 : 354,641.85 = 78,672.30 : x
  2. Step 2: Convert to fraction form
    236,427.90/354,641.85 = 78,672.30/x
  3. Step 3: Cross multiply
    236,427.90x = 354,641.85 × 78,672.30
  4. Step 4: Simplify right side
    236,427.90x = 27,900,490,015.76
  5. Step 5: Solve for x
    x = 27,900,490,015.76/236,427.90
  6. Step 6: Final answer
    x = 118,008.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.