Home / 123,031.40-184,547.10-78,708.20

Finding the Fourth Proportional to 123,031.40, 184,547.10 and 78,708.20

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Solution

The fourth proportional to 123,031.40, 184,547.10 and 78,708.20 is: 118,062.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,031.40 : 184,547.10 = 78,708.20 : x
  2. Step 2: Convert to fraction form
    123,031.40/184,547.10 = 78,708.20/x
  3. Step 3: Cross multiply
    123,031.40x = 184,547.10 × 78,708.20
  4. Step 4: Simplify right side
    123,031.40x = 14,525,370,056.22
  5. Step 5: Solve for x
    x = 14,525,370,056.22/123,031.40
  6. Step 6: Final answer
    x = 118,062.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.