Home / 140,031.84-193,186.80-85,555.68

Finding the Fourth Proportional to 140,031.84, 193,186.80 and 85,555.68

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Solution

The fourth proportional to 140,031.84, 193,186.80 and 85,555.68 is: 118,031.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,031.84 : 193,186.80 = 85,555.68 : x
  2. Step 2: Convert to fraction form
    140,031.84/193,186.80 = 85,555.68/x
  3. Step 3: Cross multiply
    140,031.84x = 193,186.80 × 85,555.68
  4. Step 4: Simplify right side
    140,031.84x = 16,528,228,041.02
  5. Step 5: Solve for x
    x = 16,528,228,041.02/140,031.84
  6. Step 6: Final answer
    x = 118,031.93

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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.