Home / 112,368.60-168,747.30-108,869.40

Finding the Fourth Proportional to 112,368.60, 168,747.30 and 108,869.40

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Solution

The fourth proportional to 112,368.60, 168,747.30 and 108,869.40 is: 163,492.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,368.60 : 168,747.30 = 108,869.40 : x
  2. Step 2: Convert to fraction form
    112,368.60/168,747.30 = 108,869.40/x
  3. Step 3: Cross multiply
    112,368.60x = 168,747.30 × 108,869.40
  4. Step 4: Simplify right side
    112,368.60x = 18,371,417,302.62
  5. Step 5: Solve for x
    x = 18,371,417,302.62/112,368.60
  6. Step 6: Final answer
    x = 163,492.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.