Home / 140,970.68-194,486.16-89,985.32

Finding the Fourth Proportional to 140,970.68, 194,486.16 and 89,985.32

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Solution

The fourth proportional to 140,970.68, 194,486.16 and 89,985.32 is: 124,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,970.68 : 194,486.16 = 89,985.32 : x
  2. Step 2: Convert to fraction form
    140,970.68/194,486.16 = 89,985.32/x
  3. Step 3: Cross multiply
    140,970.68x = 194,486.16 × 89,985.32
  4. Step 4: Simplify right side
    140,970.68x = 17,500,899,343.17
  5. Step 5: Solve for x
    x = 17,500,899,343.17/140,970.68
  6. Step 6: Final answer
    x = 124,145.67

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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.