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Finding the Fourth Proportional to 112,604.67, 155,393.10 and 61,616.84

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Solution

The fourth proportional to 112,604.67, 155,393.10 and 61,616.84 is: 85,030.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,604.67 : 155,393.10 = 61,616.84 : x
  2. Step 2: Convert to fraction form
    112,604.67/155,393.10 = 61,616.84/x
  3. Step 3: Cross multiply
    112,604.67x = 155,393.10 × 61,616.84
  4. Step 4: Simplify right side
    112,604.67x = 9,574,831,779.80
  5. Step 5: Solve for x
    x = 9,574,831,779.80/112,604.67
  6. Step 6: Final answer
    x = 85,030.50

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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.