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Finding the Fourth Proportional to 130,413.32, 179,985.32 and 73,068.13

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Solution

The fourth proportional to 130,413.32, 179,985.32 and 73,068.13 is: 100,842.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,413.32 : 179,985.32 = 73,068.13 : x
  2. Step 2: Convert to fraction form
    130,413.32/179,985.32 = 73,068.13/x
  3. Step 3: Cross multiply
    130,413.32x = 179,985.32 × 73,068.13
  4. Step 4: Simplify right side
    130,413.32x = 13,151,189,675.58
  5. Step 5: Solve for x
    x = 13,151,189,675.58/130,413.32
  6. Step 6: Final answer
    x = 100,842.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.