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Finding the Fourth Proportional to 102,533.40, 153,821.70 and 43,338.60

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Solution

The fourth proportional to 102,533.40, 153,821.70 and 43,338.60 is: 65,017.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,533.40 : 153,821.70 = 43,338.60 : x
  2. Step 2: Convert to fraction form
    102,533.40/153,821.70 = 43,338.60/x
  3. Step 3: Cross multiply
    102,533.40x = 153,821.70 × 43,338.60
  4. Step 4: Simplify right side
    102,533.40x = 6,666,417,127.62
  5. Step 5: Solve for x
    x = 6,666,417,127.62/102,533.40
  6. Step 6: Final answer
    x = 65,017.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.