Home / 243,437.04-335,931.12-135,985.68

Finding the Fourth Proportional to 243,437.04, 335,931.12 and 135,985.68

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Solution

The fourth proportional to 243,437.04, 335,931.12 and 135,985.68 is: 187,653.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,437.04 : 335,931.12 = 135,985.68 : x
  2. Step 2: Convert to fraction form
    243,437.04/335,931.12 = 135,985.68/x
  3. Step 3: Cross multiply
    243,437.04x = 335,931.12 × 135,985.68
  4. Step 4: Simplify right side
    243,437.04x = 45,681,821,786.36
  5. Step 5: Solve for x
    x = 45,681,821,786.36/243,437.04
  6. Step 6: Final answer
    x = 187,653.54

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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.