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Finding the Fourth Proportional to 191,070.22, 286,608.06 and 72,748.06

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Solution

The fourth proportional to 191,070.22, 286,608.06 and 72,748.06 is: 109,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,070.22 : 286,608.06 = 72,748.06 : x
  2. Step 2: Convert to fraction form
    191,070.22/286,608.06 = 72,748.06/x
  3. Step 3: Cross multiply
    191,070.22x = 286,608.06 × 72,748.06
  4. Step 4: Simplify right side
    191,070.22x = 20,850,180,345.36
  5. Step 5: Solve for x
    x = 20,850,180,345.36/191,070.22
  6. Step 6: Final answer
    x = 109,123.13

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1.5x scale

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.