Home / 98,242.32-147,239.40-42,015.60

Finding the Fourth Proportional to 98,242.32, 147,239.40 and 42,015.60

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Solution

The fourth proportional to 98,242.32, 147,239.40 and 42,015.60 is: 62,970.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,242.32 : 147,239.40 = 42,015.60 : x
  2. Step 2: Convert to fraction form
    98,242.32/147,239.40 = 42,015.60/x
  3. Step 3: Cross multiply
    98,242.32x = 147,239.40 × 42,015.60
  4. Step 4: Simplify right side
    98,242.32x = 6,186,351,734.64
  5. Step 5: Solve for x
    x = 6,186,351,734.64/98,242.32
  6. Step 6: Final answer
    x = 62,970.33

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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.