Home / 145,256.80-217,897.75-40,075.77

Finding the Fourth Proportional to 145,256.80, 217,897.75 and 40,075.77

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Solution

The fourth proportional to 145,256.80, 217,897.75 and 40,075.77 is: 60,117.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,256.80 : 217,897.75 = 40,075.77 : x
  2. Step 2: Convert to fraction form
    145,256.80/217,897.75 = 40,075.77/x
  3. Step 3: Cross multiply
    145,256.80x = 217,897.75 × 40,075.77
  4. Step 4: Simplify right side
    145,256.80x = 8,732,420,112.52
  5. Step 5: Solve for x
    x = 8,732,420,112.52/145,256.80
  6. Step 6: Final answer
    x = 60,117.12

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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.