Home / 215,890.72-297,915.10-119,088.77

Finding the Fourth Proportional to 215,890.72, 297,915.10 and 119,088.77

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Solution

The fourth proportional to 215,890.72, 297,915.10 and 119,088.77 is: 164,334.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,890.72 : 297,915.10 = 119,088.77 : x
  2. Step 2: Convert to fraction form
    215,890.72/297,915.10 = 119,088.77/x
  3. Step 3: Cross multiply
    215,890.72x = 297,915.10 × 119,088.77
  4. Step 4: Simplify right side
    215,890.72x = 35,478,341,036.13
  5. Step 5: Solve for x
    x = 35,478,341,036.13/215,890.72
  6. Step 6: Final answer
    x = 164,334.72

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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.