Home / 112,840.48-155,718.96-61,853.40

Finding the Fourth Proportional to 112,840.48, 155,718.96 and 61,853.40

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Solution

The fourth proportional to 112,840.48, 155,718.96 and 61,853.40 is: 85,357.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,840.48 : 155,718.96 = 61,853.40 : x
  2. Step 2: Convert to fraction form
    112,840.48/155,718.96 = 61,853.40/x
  3. Step 3: Cross multiply
    112,840.48x = 155,718.96 × 61,853.40
  4. Step 4: Simplify right side
    112,840.48x = 9,631,747,120.46
  5. Step 5: Solve for x
    x = 9,631,747,120.46/112,840.48
  6. Step 6: Final answer
    x = 85,357.20

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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.