Home / 128,075.82-176,754.33-70,726.07

Finding the Fourth Proportional to 128,075.82, 176,754.33 and 70,726.07

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Solution

The fourth proportional to 128,075.82, 176,754.33 and 70,726.07 is: 97,607.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,075.82 : 176,754.33 = 70,726.07 : x
  2. Step 2: Convert to fraction form
    128,075.82/176,754.33 = 70,726.07/x
  3. Step 3: Cross multiply
    128,075.82x = 176,754.33 × 70,726.07
  4. Step 4: Simplify right side
    128,075.82x = 12,501,138,232.61
  5. Step 5: Solve for x
    x = 12,501,138,232.61/128,075.82
  6. Step 6: Final answer
    x = 97,607.33

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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.