Home / 145,814.26-201,223.66-78,746.26

Finding the Fourth Proportional to 145,814.26, 201,223.66 and 78,746.26

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Solution

The fourth proportional to 145,814.26, 201,223.66 and 78,746.26 is: 108,669.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,814.26 : 201,223.66 = 78,746.26 : x
  2. Step 2: Convert to fraction form
    145,814.26/201,223.66 = 78,746.26/x
  3. Step 3: Cross multiply
    145,814.26x = 201,223.66 × 78,746.26
  4. Step 4: Simplify right side
    145,814.26x = 15,845,610,648.51
  5. Step 5: Solve for x
    x = 15,845,610,648.51/145,814.26
  6. Step 6: Final answer
    x = 108,669.83

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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.