Home / 99,158.08-148,762.71-42,985.12

Finding the Fourth Proportional to 99,158.08, 148,762.71 and 42,985.12

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Solution

The fourth proportional to 99,158.08, 148,762.71 and 42,985.12 is: 64,488.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,158.08 : 148,762.71 = 42,985.12 : x
  2. Step 2: Convert to fraction form
    99,158.08/148,762.71 = 42,985.12/x
  3. Step 3: Cross multiply
    99,158.08x = 148,762.71 × 42,985.12
  4. Step 4: Simplify right side
    99,158.08x = 6,394,582,940.88
  5. Step 5: Solve for x
    x = 6,394,582,940.88/99,158.08
  6. Step 6: Final answer
    x = 64,488.77

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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.