Home / 112,838.16-155,713.32-61,849.80

Finding the Fourth Proportional to 112,838.16, 155,713.32 and 61,849.80

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Solution

The fourth proportional to 112,838.16, 155,713.32 and 61,849.80 is: 85,350.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,838.16 : 155,713.32 = 61,849.80 : x
  2. Step 2: Convert to fraction form
    112,838.16/155,713.32 = 61,849.80/x
  3. Step 3: Cross multiply
    112,838.16x = 155,713.32 × 61,849.80
  4. Step 4: Simplify right side
    112,838.16x = 9,630,837,699.34
  5. Step 5: Solve for x
    x = 9,630,837,699.34/112,838.16
  6. Step 6: Final answer
    x = 85,350.89

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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.