Home / 105,303.20-157,931.48-30,407.04

Finding the Fourth Proportional to 105,303.20, 157,931.48 and 30,407.04

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Solution

The fourth proportional to 105,303.20, 157,931.48 and 30,407.04 is: 45,603.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,303.20 : 157,931.48 = 30,407.04 : x
  2. Step 2: Convert to fraction form
    105,303.20/157,931.48 = 30,407.04/x
  3. Step 3: Cross multiply
    105,303.20x = 157,931.48 × 30,407.04
  4. Step 4: Simplify right side
    105,303.20x = 4,802,228,829.62
  5. Step 5: Solve for x
    x = 4,802,228,829.62/105,303.20
  6. Step 6: Final answer
    x = 45,603.83

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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.