Home / 112,596.48-155,036.16-99,999.36

Finding the Fourth Proportional to 112,596.48, 155,036.16 and 99,999.36

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Solution

The fourth proportional to 112,596.48, 155,036.16 and 99,999.36 is: 137,690.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,596.48 : 155,036.16 = 99,999.36 : x
  2. Step 2: Convert to fraction form
    112,596.48/155,036.16 = 99,999.36/x
  3. Step 3: Cross multiply
    112,596.48x = 155,036.16 × 99,999.36
  4. Step 4: Simplify right side
    112,596.48x = 15,503,516,776.86
  5. Step 5: Solve for x
    x = 15,503,516,776.86/112,596.48
  6. Step 6: Final answer
    x = 137,690.95

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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.