Home / 155,430.20-233,030.10-105,385.40

Finding the Fourth Proportional to 155,430.20, 233,030.10 and 105,385.40

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Solution

The fourth proportional to 155,430.20, 233,030.10 and 105,385.40 is: 157,999.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,430.20 : 233,030.10 = 105,385.40 : x
  2. Step 2: Convert to fraction form
    155,430.20/233,030.10 = 105,385.40/x
  3. Step 3: Cross multiply
    155,430.20x = 233,030.10 × 105,385.40
  4. Step 4: Simplify right side
    155,430.20x = 24,557,970,300.54
  5. Step 5: Solve for x
    x = 24,557,970,300.54/155,430.20
  6. Step 6: Final answer
    x = 157,999.99

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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.