Home / 89,136.02-133,445.52-69,354.60

Finding the Fourth Proportional to 89,136.02, 133,445.52 and 69,354.60

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Solution

The fourth proportional to 89,136.02, 133,445.52 and 69,354.60 is: 103,830.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,136.02 : 133,445.52 = 69,354.60 : x
  2. Step 2: Convert to fraction form
    89,136.02/133,445.52 = 69,354.60/x
  3. Step 3: Cross multiply
    89,136.02x = 133,445.52 × 69,354.60
  4. Step 4: Simplify right side
    89,136.02x = 9,255,060,661.39
  5. Step 5: Solve for x
    x = 9,255,060,661.39/89,136.02
  6. Step 6: Final answer
    x = 103,830.77

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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.