Home / 130,547.97-180,095.40-76,798.80

Finding the Fourth Proportional to 130,547.97, 180,095.40 and 76,798.80

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Solution

The fourth proportional to 130,547.97, 180,095.40 and 76,798.80 is: 105,946.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,547.97 : 180,095.40 = 76,798.80 : x
  2. Step 2: Convert to fraction form
    130,547.97/180,095.40 = 76,798.80/x
  3. Step 3: Cross multiply
    130,547.97x = 180,095.40 × 76,798.80
  4. Step 4: Simplify right side
    130,547.97x = 13,831,110,605.52
  5. Step 5: Solve for x
    x = 13,831,110,605.52/130,547.97
  6. Step 6: Final answer
    x = 105,946.58

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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.