Home / 108,288.15-149,477.21-65,269.18

Finding the Fourth Proportional to 108,288.15, 149,477.21 and 65,269.18

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Solution

The fourth proportional to 108,288.15, 149,477.21 and 65,269.18 is: 90,095.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,288.15 : 149,477.21 = 65,269.18 : x
  2. Step 2: Convert to fraction form
    108,288.15/149,477.21 = 65,269.18/x
  3. Step 3: Cross multiply
    108,288.15x = 149,477.21 × 65,269.18
  4. Step 4: Simplify right side
    108,288.15x = 9,756,254,714.87
  5. Step 5: Solve for x
    x = 9,756,254,714.87/108,288.15
  6. Step 6: Final answer
    x = 90,095.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.