Home / 93,071.16-128,515.77-86,317.44

Finding the Fourth Proportional to 93,071.16, 128,515.77 and 86,317.44

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Solution

The fourth proportional to 93,071.16, 128,515.77 and 86,317.44 is: 119,190.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,071.16 : 128,515.77 = 86,317.44 : x
  2. Step 2: Convert to fraction form
    93,071.16/128,515.77 = 86,317.44/x
  3. Step 3: Cross multiply
    93,071.16x = 128,515.77 × 86,317.44
  4. Step 4: Simplify right side
    93,071.16x = 11,093,152,266.03
  5. Step 5: Solve for x
    x = 11,093,152,266.03/93,071.16
  6. Step 6: Final answer
    x = 119,190.01

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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.