Home / 144,256.95-199,071.68-87,686.55

Finding the Fourth Proportional to 144,256.95, 199,071.68 and 87,686.55

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Solution

The fourth proportional to 144,256.95, 199,071.68 and 87,686.55 is: 121,005.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,256.95 : 199,071.68 = 87,686.55 : x
  2. Step 2: Convert to fraction form
    144,256.95/199,071.68 = 87,686.55/x
  3. Step 3: Cross multiply
    144,256.95x = 199,071.68 × 87,686.55
  4. Step 4: Simplify right side
    144,256.95x = 17,455,908,383.47
  5. Step 5: Solve for x
    x = 17,455,908,383.47/144,256.95
  6. Step 6: Final answer
    x = 121,005.67

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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.