Home / 112,826.61-155,701.95-61,838.25

Finding the Fourth Proportional to 112,826.61, 155,701.95 and 61,838.25

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Solution

The fourth proportional to 112,826.61, 155,701.95 and 61,838.25 is: 85,337.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,826.61 : 155,701.95 = 61,838.25 : x
  2. Step 2: Convert to fraction form
    112,826.61/155,701.95 = 61,838.25/x
  3. Step 3: Cross multiply
    112,826.61x = 155,701.95 × 61,838.25
  4. Step 4: Simplify right side
    112,826.61x = 9,628,336,109.59
  5. Step 5: Solve for x
    x = 9,628,336,109.59/112,826.61
  6. Step 6: Final answer
    x = 85,337.46

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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.