Home / 145,423.08-200,682.63-81,761.13

Finding the Fourth Proportional to 145,423.08, 200,682.63 and 81,761.13

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Solution

The fourth proportional to 145,423.08, 200,682.63 and 81,761.13 is: 112,829.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,423.08 : 200,682.63 = 81,761.13 : x
  2. Step 2: Convert to fraction form
    145,423.08/200,682.63 = 81,761.13/x
  3. Step 3: Cross multiply
    145,423.08x = 200,682.63 × 81,761.13
  4. Step 4: Simplify right side
    145,423.08x = 16,408,038,600.17
  5. Step 5: Solve for x
    x = 16,408,038,600.17/145,423.08
  6. Step 6: Final answer
    x = 112,829.67

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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.