Home / 112,308.49-154,981.63-61,320.28

Finding the Fourth Proportional to 112,308.49, 154,981.63 and 61,320.28

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Solution

The fourth proportional to 112,308.49, 154,981.63 and 61,320.28 is: 84,619.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,308.49 : 154,981.63 = 61,320.28 : x
  2. Step 2: Convert to fraction form
    112,308.49/154,981.63 = 61,320.28/x
  3. Step 3: Cross multiply
    112,308.49x = 154,981.63 × 61,320.28
  4. Step 4: Simplify right side
    112,308.49x = 9,503,516,946.46
  5. Step 5: Solve for x
    x = 9,503,516,946.46/112,308.49
  6. Step 6: Final answer
    x = 84,619.76

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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.