Home / 130,419.19-179,975.77-70,803.19

Finding the Fourth Proportional to 130,419.19, 179,975.77 and 70,803.19

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Solution

The fourth proportional to 130,419.19, 179,975.77 and 70,803.19 is: 97,706.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,419.19 : 179,975.77 = 70,803.19 : x
  2. Step 2: Convert to fraction form
    130,419.19/179,975.77 = 70,803.19/x
  3. Step 3: Cross multiply
    130,419.19x = 179,975.77 × 70,803.19
  4. Step 4: Simplify right side
    130,419.19x = 12,742,858,638.71
  5. Step 5: Solve for x
    x = 12,742,858,638.71/130,419.19
  6. Step 6: Final answer
    x = 97,706.93

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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.