Home / 112,378.05-155,083.95-61,392.83

Finding the Fourth Proportional to 112,378.05, 155,083.95 and 61,392.83

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Solution

The fourth proportional to 112,378.05, 155,083.95 and 61,392.83 is: 84,723.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,378.05 : 155,083.95 = 61,392.83 : x
  2. Step 2: Convert to fraction form
    112,378.05/155,083.95 = 61,392.83/x
  3. Step 3: Cross multiply
    112,378.05x = 155,083.95 × 61,392.83
  4. Step 4: Simplify right side
    112,378.05x = 9,521,041,802.66
  5. Step 5: Solve for x
    x = 9,521,041,802.66/112,378.05
  6. Step 6: Final answer
    x = 84,723.32

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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.