Home / 215,647.84-297,587.16-135,118.86

Finding the Fourth Proportional to 215,647.84, 297,587.16 and 135,118.86

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Solution

The fourth proportional to 215,647.84, 297,587.16 and 135,118.86 is: 186,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,647.84 : 297,587.16 = 135,118.86 : x
  2. Step 2: Convert to fraction form
    215,647.84/297,587.16 = 135,118.86/x
  3. Step 3: Cross multiply
    215,647.84x = 297,587.16 × 135,118.86
  4. Step 4: Simplify right side
    215,647.84x = 40,209,637,809.84
  5. Step 5: Solve for x
    x = 40,209,637,809.84/215,647.84
  6. Step 6: Final answer
    x = 186,459.73

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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.