Home / 153,529.31-211,870.88-89,011.05

Finding the Fourth Proportional to 153,529.31, 211,870.88 and 89,011.05

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Solution

The fourth proportional to 153,529.31, 211,870.88 and 89,011.05 is: 122,835.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,529.31 : 211,870.88 = 89,011.05 : x
  2. Step 2: Convert to fraction form
    153,529.31/211,870.88 = 89,011.05/x
  3. Step 3: Cross multiply
    153,529.31x = 211,870.88 × 89,011.05
  4. Step 4: Simplify right side
    153,529.31x = 18,858,849,048.17
  5. Step 5: Solve for x
    x = 18,858,849,048.17/153,529.31
  6. Step 6: Final answer
    x = 122,835.50

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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.