Home / 124,875.42-172,465.11-84,777.18

Finding the Fourth Proportional to 124,875.42, 172,465.11 and 84,777.18

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Solution

The fourth proportional to 124,875.42, 172,465.11 and 84,777.18 is: 117,085.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,875.42 : 172,465.11 = 84,777.18 : x
  2. Step 2: Convert to fraction form
    124,875.42/172,465.11 = 84,777.18/x
  3. Step 3: Cross multiply
    124,875.42x = 172,465.11 × 84,777.18
  4. Step 4: Simplify right side
    124,875.42x = 14,621,105,674.19
  5. Step 5: Solve for x
    x = 14,621,105,674.19/124,875.42
  6. Step 6: Final answer
    x = 117,085.54

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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.