Home / 112,421.22-155,139.93-62,119.14

Finding the Fourth Proportional to 112,421.22, 155,139.93 and 62,119.14

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Solution

The fourth proportional to 112,421.22, 155,139.93 and 62,119.14 is: 85,723.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,421.22 : 155,139.93 = 62,119.14 : x
  2. Step 2: Convert to fraction form
    112,421.22/155,139.93 = 62,119.14/x
  3. Step 3: Cross multiply
    112,421.22x = 155,139.93 × 62,119.14
  4. Step 4: Simplify right side
    112,421.22x = 9,637,159,031.26
  5. Step 5: Solve for x
    x = 9,637,159,031.26/112,421.22
  6. Step 6: Final answer
    x = 85,723.67

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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.