Home / 145,709.60-218,434.73-56,942.91

Finding the Fourth Proportional to 145,709.60, 218,434.73 and 56,942.91

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Solution

The fourth proportional to 145,709.60, 218,434.73 and 56,942.91 is: 85,363.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,709.60 : 218,434.73 = 56,942.91 : x
  2. Step 2: Convert to fraction form
    145,709.60/218,434.73 = 56,942.91/x
  3. Step 3: Cross multiply
    145,709.60x = 218,434.73 × 56,942.91
  4. Step 4: Simplify right side
    145,709.60x = 12,438,308,886.55
  5. Step 5: Solve for x
    x = 12,438,308,886.55/145,709.60
  6. Step 6: Final answer
    x = 85,363.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.