Home / 105,566.47-145,681.95-57,168.94

Finding the Fourth Proportional to 105,566.47, 145,681.95 and 57,168.94

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Solution

The fourth proportional to 105,566.47, 145,681.95 and 57,168.94 is: 78,893.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,566.47 : 145,681.95 = 57,168.94 : x
  2. Step 2: Convert to fraction form
    105,566.47/145,681.95 = 57,168.94/x
  3. Step 3: Cross multiply
    105,566.47x = 145,681.95 × 57,168.94
  4. Step 4: Simplify right side
    105,566.47x = 8,328,482,658.63
  5. Step 5: Solve for x
    x = 8,328,482,658.63/105,566.47
  6. Step 6: Final answer
    x = 78,893.26

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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.