Home / 188,870.64-260,643.04-102,830.20

Finding the Fourth Proportional to 188,870.64, 260,643.04 and 102,830.20

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Solution

The fourth proportional to 188,870.64, 260,643.04 and 102,830.20 is: 141,906.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,870.64 : 260,643.04 = 102,830.20 : x
  2. Step 2: Convert to fraction form
    188,870.64/260,643.04 = 102,830.20/x
  3. Step 3: Cross multiply
    188,870.64x = 260,643.04 × 102,830.20
  4. Step 4: Simplify right side
    188,870.64x = 26,801,975,931.81
  5. Step 5: Solve for x
    x = 26,801,975,931.81/188,870.64
  6. Step 6: Final answer
    x = 141,906.52

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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.