Home / 145,877.29-217,281.77-139,051.69

Finding the Fourth Proportional to 145,877.29, 217,281.77 and 139,051.69

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Solution

The fourth proportional to 145,877.29, 217,281.77 and 139,051.69 is: 207,115.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,877.29 : 217,281.77 = 139,051.69 : x
  2. Step 2: Convert to fraction form
    145,877.29/217,281.77 = 139,051.69/x
  3. Step 3: Cross multiply
    145,877.29x = 217,281.77 × 139,051.69
  4. Step 4: Simplify right side
    145,877.29x = 30,213,397,389.84
  5. Step 5: Solve for x
    x = 30,213,397,389.84/145,877.29
  6. Step 6: Final answer
    x = 207,115.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.