Home / 144,830.10-199,854.63-81,155.64

Finding the Fourth Proportional to 144,830.10, 199,854.63 and 81,155.64

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Solution

The fourth proportional to 144,830.10, 199,854.63 and 81,155.64 is: 111,988.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,830.10 : 199,854.63 = 81,155.64 : x
  2. Step 2: Convert to fraction form
    144,830.10/199,854.63 = 81,155.64/x
  3. Step 3: Cross multiply
    144,830.10x = 199,854.63 × 81,155.64
  4. Step 4: Simplify right side
    144,830.10x = 16,219,330,404.61
  5. Step 5: Solve for x
    x = 16,219,330,404.61/144,830.10
  6. Step 6: Final answer
    x = 111,988.67

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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.