Home / 112,068,672.60-168,103,008.90-79,190,189.40

Finding the Fourth Proportional to 112,068,672.60, 168,103,008.90 and 79,190,189.40

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Solution

The fourth proportional to 112,068,672.60, 168,103,008.90 and 79,190,189.40 is: 118,785,284.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,068,672.60 : 168,103,008.90 = 79,190,189.40 : x
  2. Step 2: Convert to fraction form
    112,068,672.60/168,103,008.90 = 79,190,189.40/x
  3. Step 3: Cross multiply
    112,068,672.60x = 168,103,008.90 × 79,190,189.40
  4. Step 4: Simplify right side
    112,068,672.60x = 13,312,109,113,500,888
  5. Step 5: Solve for x
    x = 13,312,109,113,500,888/112,068,672.60
  6. Step 6: Final answer
    x = 118,785,284.10

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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.