Home / 286,002.16-429,003.20-99,013.60

Finding the Fourth Proportional to 286,002.16, 429,003.20 and 99,013.60

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Solution

The fourth proportional to 286,002.16, 429,003.20 and 99,013.60 is: 148,520.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,002.16 : 429,003.20 = 99,013.60 : x
  2. Step 2: Convert to fraction form
    286,002.16/429,003.20 = 99,013.60/x
  3. Step 3: Cross multiply
    286,002.16x = 429,003.20 × 99,013.60
  4. Step 4: Simplify right side
    286,002.16x = 42,477,151,243.52
  5. Step 5: Solve for x
    x = 42,477,151,243.52/286,002.16
  6. Step 6: Final answer
    x = 148,520.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.