Home / 210,095.28-315,199.08-91,776.24

Finding the Fourth Proportional to 210,095.28, 315,199.08 and 91,776.24

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Solution

The fourth proportional to 210,095.28, 315,199.08 and 91,776.24 is: 137,688.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,095.28 : 315,199.08 = 91,776.24 : x
  2. Step 2: Convert to fraction form
    210,095.28/315,199.08 = 91,776.24/x
  3. Step 3: Cross multiply
    210,095.28x = 315,199.08 × 91,776.24
  4. Step 4: Simplify right side
    210,095.28x = 28,927,786,413.86
  5. Step 5: Solve for x
    x = 28,927,786,413.86/210,095.28
  6. Step 6: Final answer
    x = 137,688.89

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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.