Home / 140,077.95-193,307.18-76,415.30

Finding the Fourth Proportional to 140,077.95, 193,307.18 and 76,415.30

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Solution

The fourth proportional to 140,077.95, 193,307.18 and 76,415.30 is: 105,452.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,077.95 : 193,307.18 = 76,415.30 : x
  2. Step 2: Convert to fraction form
    140,077.95/193,307.18 = 76,415.30/x
  3. Step 3: Cross multiply
    140,077.95x = 193,307.18 × 76,415.30
  4. Step 4: Simplify right side
    140,077.95x = 14,771,624,803.24
  5. Step 5: Solve for x
    x = 14,771,624,803.24/140,077.95
  6. Step 6: Final answer
    x = 105,452.89

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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.