Home / 112,386.98-155,087.06-61,389.38

Finding the Fourth Proportional to 112,386.98, 155,087.06 and 61,389.38

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Solution

The fourth proportional to 112,386.98, 155,087.06 and 61,389.38 is: 84,713.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,386.98 : 155,087.06 = 61,389.38 : x
  2. Step 2: Convert to fraction form
    112,386.98/155,087.06 = 61,389.38/x
  3. Step 3: Cross multiply
    112,386.98x = 155,087.06 × 61,389.38
  4. Step 4: Simplify right side
    112,386.98x = 9,520,698,459.42
  5. Step 5: Solve for x
    x = 9,520,698,459.42/112,386.98
  6. Step 6: Final answer
    x = 84,713.54

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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.