Home / 133,085.60-199,336.80-70,683.20

Finding the Fourth Proportional to 133,085.60, 199,336.80 and 70,683.20

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Solution

The fourth proportional to 133,085.60, 199,336.80 and 70,683.20 is: 105,869.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,085.60 : 199,336.80 = 70,683.20 : x
  2. Step 2: Convert to fraction form
    133,085.60/199,336.80 = 70,683.20/x
  3. Step 3: Cross multiply
    133,085.60x = 199,336.80 × 70,683.20
  4. Step 4: Simplify right side
    133,085.60x = 14,089,762,901.76
  5. Step 5: Solve for x
    x = 14,089,762,901.76/133,085.60
  6. Step 6: Final answer
    x = 105,869.93

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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.