Home / 92,905.65-128,263.01-61,166.81

Finding the Fourth Proportional to 92,905.65, 128,263.01 and 61,166.81

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Solution

The fourth proportional to 92,905.65, 128,263.01 and 61,166.81 is: 84,445.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,905.65 : 128,263.01 = 61,166.81 : x
  2. Step 2: Convert to fraction form
    92,905.65/128,263.01 = 61,166.81/x
  3. Step 3: Cross multiply
    92,905.65x = 128,263.01 × 61,166.81
  4. Step 4: Simplify right side
    92,905.65x = 7,845,439,177.52
  5. Step 5: Solve for x
    x = 7,845,439,177.52/92,905.65
  6. Step 6: Final answer
    x = 84,445.23

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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.