Home / 215,421.37-297,087.95-134,856.23

Finding the Fourth Proportional to 215,421.37, 297,087.95 and 134,856.23

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Solution

The fourth proportional to 215,421.37, 297,087.95 and 134,856.23 is: 185,980.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,421.37 : 297,087.95 = 134,856.23 : x
  2. Step 2: Convert to fraction form
    215,421.37/297,087.95 = 134,856.23/x
  3. Step 3: Cross multiply
    215,421.37x = 297,087.95 × 134,856.23
  4. Step 4: Simplify right side
    215,421.37x = 40,064,159,767.13
  5. Step 5: Solve for x
    x = 40,064,159,767.13/215,421.37
  6. Step 6: Final answer
    x = 185,980.44

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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.