Home / 112,288.16-154,960-61,303.04

Finding the Fourth Proportional to 112,288.16, 154,960 and 61,303.04

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Solution

The fourth proportional to 112,288.16, 154,960 and 61,303.04 is: 84,599.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,288.16 : 154,960 = 61,303.04 : x
  2. Step 2: Convert to fraction form
    112,288.16/154,960 = 61,303.04/x
  3. Step 3: Cross multiply
    112,288.16x = 154,960 × 61,303.04
  4. Step 4: Simplify right side
    112,288.16x = 9,499,518,303.60
  5. Step 5: Solve for x
    x = 9,499,518,303.60/112,288.16
  6. Step 6: Final answer
    x = 84,599.47

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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.