Home / 130,039.31-179,454.47-70,423.31

Finding the Fourth Proportional to 130,039.31, 179,454.47 and 70,423.31

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Solution

The fourth proportional to 130,039.31, 179,454.47 and 70,423.31 is: 97,184.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,039.31 : 179,454.47 = 70,423.31 : x
  2. Step 2: Convert to fraction form
    130,039.31/179,454.47 = 70,423.31/x
  3. Step 3: Cross multiply
    130,039.31x = 179,454.47 × 70,423.31
  4. Step 4: Simplify right side
    130,039.31x = 12,637,777,868.22
  5. Step 5: Solve for x
    x = 12,637,777,868.22/130,039.31
  6. Step 6: Final answer
    x = 97,184.29

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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.