Home / 112,646.73-155,445.84-61,649.40

Finding the Fourth Proportional to 112,646.73, 155,445.84 and 61,649.40

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Solution

The fourth proportional to 112,646.73, 155,445.84 and 61,649.40 is: 85,072.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,646.73 : 155,445.84 = 61,649.40 : x
  2. Step 2: Convert to fraction form
    112,646.73/155,445.84 = 61,649.40/x
  3. Step 3: Cross multiply
    112,646.73x = 155,445.84 × 61,649.40
  4. Step 4: Simplify right side
    112,646.73x = 9,583,142,768.50
  5. Step 5: Solve for x
    x = 9,583,142,768.50/112,646.73
  6. Step 6: Final answer
    x = 85,072.53

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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.