Home / 72,345.02-108,684.30-69,355.74

Finding the Fourth Proportional to 72,345.02, 108,684.30 and 69,355.74

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Solution

The fourth proportional to 72,345.02, 108,684.30 and 69,355.74 is: 104,193.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,345.02 : 108,684.30 = 69,355.74 : x
  2. Step 2: Convert to fraction form
    72,345.02/108,684.30 = 69,355.74/x
  3. Step 3: Cross multiply
    72,345.02x = 108,684.30 × 69,355.74
  4. Step 4: Simplify right side
    72,345.02x = 7,537,880,052.88
  5. Step 5: Solve for x
    x = 7,537,880,052.88/72,345.02
  6. Step 6: Final answer
    x = 104,193.49

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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.