Home / 98,566.40-147,849.60-45,981.20

Finding the Fourth Proportional to 98,566.40, 147,849.60 and 45,981.20

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Solution

The fourth proportional to 98,566.40, 147,849.60 and 45,981.20 is: 68,971.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,566.40 : 147,849.60 = 45,981.20 : x
  2. Step 2: Convert to fraction form
    98,566.40/147,849.60 = 45,981.20/x
  3. Step 3: Cross multiply
    98,566.40x = 147,849.60 × 45,981.20
  4. Step 4: Simplify right side
    98,566.40x = 6,798,302,027.52
  5. Step 5: Solve for x
    x = 6,798,302,027.52/98,566.40
  6. Step 6: Final answer
    x = 68,971.80

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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.