Home / 102,907.02-142,006.86-57,590.76

Finding the Fourth Proportional to 102,907.02, 142,006.86 and 57,590.76

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Solution

The fourth proportional to 102,907.02, 142,006.86 and 57,590.76 is: 79,472.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,907.02 : 142,006.86 = 57,590.76 : x
  2. Step 2: Convert to fraction form
    102,907.02/142,006.86 = 57,590.76/x
  3. Step 3: Cross multiply
    102,907.02x = 142,006.86 × 57,590.76
  4. Step 4: Simplify right side
    102,907.02x = 8,178,282,992.61
  5. Step 5: Solve for x
    x = 8,178,282,992.61/102,907.02
  6. Step 6: Final answer
    x = 79,472.55

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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.