Home / 223,980.16-309,070.21-137,925.36

Finding the Fourth Proportional to 223,980.16, 309,070.21 and 137,925.36

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Solution

The fourth proportional to 223,980.16, 309,070.21 and 137,925.36 is: 190,323.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,980.16 : 309,070.21 = 137,925.36 : x
  2. Step 2: Convert to fraction form
    223,980.16/309,070.21 = 137,925.36/x
  3. Step 3: Cross multiply
    223,980.16x = 309,070.21 × 137,925.36
  4. Step 4: Simplify right side
    223,980.16x = 42,628,619,979.53
  5. Step 5: Solve for x
    x = 42,628,619,979.53/223,980.16
  6. Step 6: Final answer
    x = 190,323.20

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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.