Home / 145,413.14-218,077.56-56,646.86

Finding the Fourth Proportional to 145,413.14, 218,077.56 and 56,646.86

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Solution

The fourth proportional to 145,413.14, 218,077.56 and 56,646.86 is: 84,953.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,413.14 : 218,077.56 = 56,646.86 : x
  2. Step 2: Convert to fraction form
    145,413.14/218,077.56 = 56,646.86/x
  3. Step 3: Cross multiply
    145,413.14x = 218,077.56 × 56,646.86
  4. Step 4: Simplify right side
    145,413.14x = 12,353,409,010.46
  5. Step 5: Solve for x
    x = 12,353,409,010.46/145,413.14
  6. Step 6: Final answer
    x = 84,953.87

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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.