Home / 93,741.13-129,228.18-66,836.93

Finding the Fourth Proportional to 93,741.13, 129,228.18 and 66,836.93

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Solution

The fourth proportional to 93,741.13, 129,228.18 and 66,836.93 is: 92,139.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,741.13 : 129,228.18 = 66,836.93 : x
  2. Step 2: Convert to fraction form
    93,741.13/129,228.18 = 66,836.93/x
  3. Step 3: Cross multiply
    93,741.13x = 129,228.18 × 66,836.93
  4. Step 4: Simplify right side
    93,741.13x = 8,637,214,820.69
  5. Step 5: Solve for x
    x = 8,637,214,820.69/93,741.13
  6. Step 6: Final answer
    x = 92,139.01

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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.