Home / 107,128.80-160,693.20-89,762.40

Finding the Fourth Proportional to 107,128.80, 160,693.20 and 89,762.40

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Solution

The fourth proportional to 107,128.80, 160,693.20 and 89,762.40 is: 134,643.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,128.80 : 160,693.20 = 89,762.40 : x
  2. Step 2: Convert to fraction form
    107,128.80/160,693.20 = 89,762.40/x
  3. Step 3: Cross multiply
    107,128.80x = 160,693.20 × 89,762.40
  4. Step 4: Simplify right side
    107,128.80x = 14,424,207,295.68
  5. Step 5: Solve for x
    x = 14,424,207,295.68/107,128.80
  6. Step 6: Final answer
    x = 134,643.60

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1.5x scale

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.