Home / 128,088.06-176,762.01-70,726.42

Finding the Fourth Proportional to 128,088.06, 176,762.01 and 70,726.42

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Solution

The fourth proportional to 128,088.06, 176,762.01 and 70,726.42 is: 97,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,088.06 : 176,762.01 = 70,726.42 : x
  2. Step 2: Convert to fraction form
    128,088.06/176,762.01 = 70,726.42/x
  3. Step 3: Cross multiply
    128,088.06x = 176,762.01 × 70,726.42
  4. Step 4: Simplify right side
    128,088.06x = 12,501,744,159.30
  5. Step 5: Solve for x
    x = 12,501,744,159.30/128,088.06
  6. Step 6: Final answer
    x = 97,602.73

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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.