Home / 112,947.83-155,869.22-61,960.67

Finding the Fourth Proportional to 112,947.83, 155,869.22 and 61,960.67

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Solution

The fourth proportional to 112,947.83, 155,869.22 and 61,960.67 is: 85,506.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,947.83 : 155,869.22 = 61,960.67 : x
  2. Step 2: Convert to fraction form
    112,947.83/155,869.22 = 61,960.67/x
  3. Step 3: Cross multiply
    112,947.83x = 155,869.22 × 61,960.67
  4. Step 4: Simplify right side
    112,947.83x = 9,657,760,214.43
  5. Step 5: Solve for x
    x = 9,657,760,214.43/112,947.83
  6. Step 6: Final answer
    x = 85,506.39

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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.