Home / 191,545.85-287,272.53-84,870.83

Finding the Fourth Proportional to 191,545.85, 287,272.53 and 84,870.83

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Solution

The fourth proportional to 191,545.85, 287,272.53 and 84,870.83 is: 127,285.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,545.85 : 287,272.53 = 84,870.83 : x
  2. Step 2: Convert to fraction form
    191,545.85/287,272.53 = 84,870.83/x
  3. Step 3: Cross multiply
    191,545.85x = 287,272.53 × 84,870.83
  4. Step 4: Simplify right side
    191,545.85x = 24,381,056,620.94
  5. Step 5: Solve for x
    x = 24,381,056,620.94/191,545.85
  6. Step 6: Final answer
    x = 127,285.75

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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.