Home / 103,126.17-142,312.78-57,804.07

Finding the Fourth Proportional to 103,126.17, 142,312.78 and 57,804.07

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Solution

The fourth proportional to 103,126.17, 142,312.78 and 57,804.07 is: 79,768.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,126.17 : 142,312.78 = 57,804.07 : x
  2. Step 2: Convert to fraction form
    103,126.17/142,312.78 = 57,804.07/x
  3. Step 3: Cross multiply
    103,126.17x = 142,312.78 × 57,804.07
  4. Step 4: Simplify right side
    103,126.17x = 8,226,257,897.01
  5. Step 5: Solve for x
    x = 8,226,257,897.01/103,126.17
  6. Step 6: Final answer
    x = 79,768.87

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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.