Home / 103,612.32-155,271.36-47,314.08

Finding the Fourth Proportional to 103,612.32, 155,271.36 and 47,314.08

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Solution

The fourth proportional to 103,612.32, 155,271.36 and 47,314.08 is: 70,903.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,612.32 : 155,271.36 = 47,314.08 : x
  2. Step 2: Convert to fraction form
    103,612.32/155,271.36 = 47,314.08/x
  3. Step 3: Cross multiply
    103,612.32x = 155,271.36 × 47,314.08
  4. Step 4: Simplify right side
    103,612.32x = 7,346,521,548.75
  5. Step 5: Solve for x
    x = 7,346,521,548.75/103,612.32
  6. Step 6: Final answer
    x = 70,903.94

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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.