Home / 209,431.04-314,192.64-98,746.88

Finding the Fourth Proportional to 209,431.04, 314,192.64 and 98,746.88

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Solution

The fourth proportional to 209,431.04, 314,192.64 and 98,746.88 is: 148,142.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,431.04 : 314,192.64 = 98,746.88 : x
  2. Step 2: Convert to fraction form
    209,431.04/314,192.64 = 98,746.88/x
  3. Step 3: Cross multiply
    209,431.04x = 314,192.64 × 98,746.88
  4. Step 4: Simplify right side
    209,431.04x = 31,025,542,918.96
  5. Step 5: Solve for x
    x = 31,025,542,918.96/209,431.04
  6. Step 6: Final answer
    x = 148,142.05

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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.