Home / 93,238.18-128,809.29-75,302.05

Finding the Fourth Proportional to 93,238.18, 128,809.29 and 75,302.05

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Solution

The fourth proportional to 93,238.18, 128,809.29 and 75,302.05 is: 104,030.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,238.18 : 128,809.29 = 75,302.05 : x
  2. Step 2: Convert to fraction form
    93,238.18/128,809.29 = 75,302.05/x
  3. Step 3: Cross multiply
    93,238.18x = 128,809.29 × 75,302.05
  4. Step 4: Simplify right side
    93,238.18x = 9,699,603,596.04
  5. Step 5: Solve for x
    x = 9,699,603,596.04/93,238.18
  6. Step 6: Final answer
    x = 104,030.38

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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.