Home / 191,005.92-286,633.20-72,678.24

Finding the Fourth Proportional to 191,005.92, 286,633.20 and 72,678.24

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Solution

The fourth proportional to 191,005.92, 286,633.20 and 72,678.24 is: 109,064.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,005.92 : 286,633.20 = 72,678.24 : x
  2. Step 2: Convert to fraction form
    191,005.92/286,633.20 = 72,678.24/x
  3. Step 3: Cross multiply
    191,005.92x = 286,633.20 × 72,678.24
  4. Step 4: Simplify right side
    191,005.92x = 20,831,996,501.57
  5. Step 5: Solve for x
    x = 20,831,996,501.57/191,005.92
  6. Step 6: Final answer
    x = 109,064.66

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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.