Home / 112,307.96-154,983.81-61,320.54

Finding the Fourth Proportional to 112,307.96, 154,983.81 and 61,320.54

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Solution

The fourth proportional to 112,307.96, 154,983.81 and 61,320.54 is: 84,621.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,307.96 : 154,983.81 = 61,320.54 : x
  2. Step 2: Convert to fraction form
    112,307.96/154,983.81 = 61,320.54/x
  3. Step 3: Cross multiply
    112,307.96x = 154,983.81 × 61,320.54
  4. Step 4: Simplify right side
    112,307.96x = 9,503,690,859.81
  5. Step 5: Solve for x
    x = 9,503,690,859.81/112,307.96
  6. Step 6: Final answer
    x = 84,621.70

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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.