Home / 139,214.40-208,830.02-39,382.17

Finding the Fourth Proportional to 139,214.40, 208,830.02 and 39,382.17

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Solution

The fourth proportional to 139,214.40, 208,830.02 and 39,382.17 is: 59,075.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,214.40 : 208,830.02 = 39,382.17 : x
  2. Step 2: Convert to fraction form
    139,214.40/208,830.02 = 39,382.17/x
  3. Step 3: Cross multiply
    139,214.40x = 208,830.02 × 39,382.17
  4. Step 4: Simplify right side
    139,214.40x = 8,224,180,463.01
  5. Step 5: Solve for x
    x = 8,224,180,463.01/139,214.40
  6. Step 6: Final answer
    x = 59,075.65

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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.