Home / 102,666.98-141,678.93-57,345.62

Finding the Fourth Proportional to 102,666.98, 141,678.93 and 57,345.62

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Solution

The fourth proportional to 102,666.98, 141,678.93 and 57,345.62 is: 79,136.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,666.98 : 141,678.93 = 57,345.62 : x
  2. Step 2: Convert to fraction form
    102,666.98/141,678.93 = 57,345.62/x
  3. Step 3: Cross multiply
    102,666.98x = 141,678.93 × 57,345.62
  4. Step 4: Simplify right side
    102,666.98x = 8,124,665,795.06
  5. Step 5: Solve for x
    x = 8,124,665,795.06/102,666.98
  6. Step 6: Final answer
    x = 79,136.11

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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.