Home / 103,430.68-155,124.23-47,254.84

Finding the Fourth Proportional to 103,430.68, 155,124.23 and 47,254.84

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Solution

The fourth proportional to 103,430.68, 155,124.23 and 47,254.84 is: 70,872.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,430.68 : 155,124.23 = 47,254.84 : x
  2. Step 2: Convert to fraction form
    103,430.68/155,124.23 = 47,254.84/x
  3. Step 3: Cross multiply
    103,430.68x = 155,124.23 × 47,254.84
  4. Step 4: Simplify right side
    103,430.68x = 7,330,369,893.15
  5. Step 5: Solve for x
    x = 7,330,369,893.15/103,430.68
  6. Step 6: Final answer
    x = 70,872.30

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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.