Home / 127,876.47-176,465.48-70,518.21

Finding the Fourth Proportional to 127,876.47, 176,465.48 and 70,518.21

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Solution

The fourth proportional to 127,876.47, 176,465.48 and 70,518.21 is: 97,312.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,876.47 : 176,465.48 = 70,518.21 : x
  2. Step 2: Convert to fraction form
    127,876.47/176,465.48 = 70,518.21/x
  3. Step 3: Cross multiply
    127,876.47x = 176,465.48 × 70,518.21
  4. Step 4: Simplify right side
    127,876.47x = 12,444,030,669.08
  5. Step 5: Solve for x
    x = 12,444,030,669.08/127,876.47
  6. Step 6: Final answer
    x = 97,312.90

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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.