Home / 191,000.28-286,533.54-72,681.96

Finding the Fourth Proportional to 191,000.28, 286,533.54 and 72,681.96

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Solution

The fourth proportional to 191,000.28, 286,533.54 and 72,681.96 is: 109,035.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,000.28 : 286,533.54 = 72,681.96 : x
  2. Step 2: Convert to fraction form
    191,000.28/286,533.54 = 72,681.96/x
  3. Step 3: Cross multiply
    191,000.28x = 286,533.54 × 72,681.96
  4. Step 4: Simplify right side
    191,000.28x = 20,825,819,292.94
  5. Step 5: Solve for x
    x = 20,825,819,292.94/191,000.28
  6. Step 6: Final answer
    x = 109,035.54

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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.