Home / 145,845.21-218,904.36-89,794.74

Finding the Fourth Proportional to 145,845.21, 218,904.36 and 89,794.74

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Solution

The fourth proportional to 145,845.21, 218,904.36 and 89,794.74 is: 134,776.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,845.21 : 218,904.36 = 89,794.74 : x
  2. Step 2: Convert to fraction form
    145,845.21/218,904.36 = 89,794.74/x
  3. Step 3: Cross multiply
    145,845.21x = 218,904.36 × 89,794.74
  4. Step 4: Simplify right side
    145,845.21x = 19,656,460,091.07
  5. Step 5: Solve for x
    x = 19,656,460,091.07/145,845.21
  6. Step 6: Final answer
    x = 134,776.18

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1.5x scale

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.