Home / 128,303.04-177,060.87-70,947.09

Finding the Fourth Proportional to 128,303.04, 177,060.87 and 70,947.09

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Solution

The fourth proportional to 128,303.04, 177,060.87 and 70,947.09 is: 97,908.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,303.04 : 177,060.87 = 70,947.09 : x
  2. Step 2: Convert to fraction form
    128,303.04/177,060.87 = 70,947.09/x
  3. Step 3: Cross multiply
    128,303.04x = 177,060.87 × 70,947.09
  4. Step 4: Simplify right side
    128,303.04x = 12,561,953,479.37
  5. Step 5: Solve for x
    x = 12,561,953,479.37/128,303.04
  6. Step 6: Final answer
    x = 97,908.46

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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.