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Finding the Fourth Proportional to 148,810.32, 205,300.08 and 85,114.08

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Solution

The fourth proportional to 148,810.32, 205,300.08 and 85,114.08 is: 117,424.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,810.32 : 205,300.08 = 85,114.08 : x
  2. Step 2: Convert to fraction form
    148,810.32/205,300.08 = 85,114.08/x
  3. Step 3: Cross multiply
    148,810.32x = 205,300.08 × 85,114.08
  4. Step 4: Simplify right side
    148,810.32x = 17,473,927,433.13
  5. Step 5: Solve for x
    x = 17,473,927,433.13/148,810.32
  6. Step 6: Final answer
    x = 117,424.16

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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.